.demo {
    display: inline-block;
    width: 1000px;
    height: auto;
    text-align: center;
    line-height: 30px;
    border: 1px solid transparent;
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
    position: relative;
    /* box-shadow: 0 1px 1px rgba(0, 0, 0, .2); */
}


/* .demo:hover {
    display: block;
} */


/* 控制按钮的大小*/

.vjs-custom-skin>.video-js .vjs-big-play-button {
    transform: scale(0.6) !important;
}